CN113986053A - High-refresh embedded touch panel - Google Patents
High-refresh embedded touch panel Download PDFInfo
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- CN113986053A CN113986053A CN202111274062.8A CN202111274062A CN113986053A CN 113986053 A CN113986053 A CN 113986053A CN 202111274062 A CN202111274062 A CN 202111274062A CN 113986053 A CN113986053 A CN 113986053A
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- sensor pad
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- 230000001808 coupling effect Effects 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 230000003071 parasitic effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003990 capacitor Substances 0.000 description 11
- 230000002159 abnormal effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010040925 Skin striae Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 235000021022 fresh fruits Nutrition 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 238000002198 surface plasmon resonance spectroscopy Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a high refresh embedded touch panel, which comprises a TP sensor pad and a grid gate, the TP sensor pad is hexagonal, the TP sensor pad is a VCOM electrode, the gate line gate is a TFT switch control line of each row of pixels in the touch display screen, the invention makes a special design for the TP sensor pad, changes the original square shape of the TP sensor pad into a hexagonal shape, at the boundary of the TP sensor pad, one gate line gate can pass through multiple TP sensor pads, and the coupling effect of the same gate line to two adjacent TP sensor pads is the same, and the boundaries of two adjacent TP sensor pads are penetrated by a plurality of gate lines gate, and the coupling effects caused by the gate lines Gn and Gn +4 can be mutually offset, so that the existence of TP stripes can be reduced by the gate lines, and the display effect is improved.
Description
Technical Field
The invention relates to the technical field of touch panels, in particular to a high-refresh embedded touch panel.
Background
A touch panel in the prior art, for example, a display screen is disclosed in chinese invention publication (announcement) No. CN109597511A, and the touch panel of the display screen includes a routing layer; the wiring layer comprises a plurality of wirings arranged at intervals and an interval area positioned between every two adjacent wirings; at least part of the interval area is provided with patterned metal to form a surface plasmon resonance structure.
Although the above patent can improve the light input amount, it cannot solve the cross striation phenomenon of the in-cell touch panel TP, which affects the display of fresh fruits.
Disclosure of Invention
The present invention is directed to a high refresh in-cell touch panel, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a high refresh embedded touch panel comprises a TP sensor pad and a gate, wherein the TP sensor pad is hexagonal, the TP sensor pad is a VCOM electrode, and the gate is a TFT switch control line of each row of pixels in a touch display screen;
the touch screen display can enable a user to operate the host machine by lightly touching icons or characters on the computer display screen with fingers, so that the operation of a keyboard and a mouse is avoided, the man-machine interaction is more straightforward, products mainly include a capacitive touch screen, a resistive touch screen and a surface acoustic wave touch screen, and the capacitive touch screen is adopted by the high-refresh embedded touch panel.
The specific design of the high refresh embedded touch panel is as follows: the original square shape of the TP sensor pad is changed into a hexagonal shape, one gate line gate can penetrate through a plurality of TP sensor pads at the boundary of the TP sensor pads, the same gate line gate has the same coupling effect on two adjacent TP sensor pads, and the boundary of the two adjacent TP sensor pads is penetrated by the gate lines gate, so the coupling effects caused by the gate line Gn and the gate line Gn +4 can be mutually offset, and the gate lines can further weaken the existence of TP cross striations by the mode.
The touch panels each include an Indium Tin Oxide (ITO) conductive layer. The ITO conductive layer is manufactured into conductive circuits with different patterns and used for generating voltage or current values when the touch panel is touched, calculating the position of the contact point according to the current value or the voltage value through a calculating device, and executing a corresponding instruction at the contact point on the display screen according to the position of the contact point.
The high refresh embedded touch panel is composed of a plurality of TP sensor pads which are transversely and longitudinally arranged, and a plurality of groups of hexagonal TP sensor pads are conveniently arranged, and the generated gaps are small.
The touch panel further comprises a coupling capacitor C1, wherein the coupling capacitor C1 is a parasitic capacitor between the Gate line Gate and the VCOM electrode, and the coupling capacitor C1 causes the Gate line Gate to generate a coupling effect on the common electrode VCOM during the up (down) rising edge, so that voltages between different touch blocks and the VCOM are different.
Compared with the prior art, the invention has the beneficial effects that: the invention makes special design for the TP sensor pad, changes the original square shape of the TP sensor pad into a hexagonal shape, at the boundary of the TP sensor pad, one grid line gate can pass through a plurality of TP sensor pads, at the moment, the coupling effect of the same grid line to two adjacent TP sensor pads is the same, the boundary of two adjacent TP sensor pads can be passed through by a plurality of grid lines gate, the coupling effect caused by the grid line Gn and the grid line Gn +4 can be mutually offset, so the grid lines can reduce the existence of TP cross striations, and the display effect is improved.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic diagram of a coupling capacitor structure according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the touch display screen, because there are many parasitic capacitances inside the display screen, such as parasitic capacitances between the Gate line Gate and the common electrode VCOM, these parasitic capacitances can cause the Gate line Gate to generate a coupling effect on the common electrode VCOM when the Gate line Gate rises (rises) up (down), so that voltages between different touch blocks and the common electrode VCOM are different, and thus abnormal TP horizontal stripes can be seen at the boundary of the touch block TP Sensor pad on the display screen, which seriously affects the display effect of the touch display screen. Especially, when a high refresh rate panel is used, the TP cross striation phenomenon is more serious. The touch display screen is specially designed aiming at the abnormal phenomenon, so that the display effect of the touch display screen is improved.
In fig. 1, it can be seen that when the first gate line G1 is turned on and the potential of G1 changes from low to high, the level change of G1 raises the voltage level of the VCOM electrode through the coupling capacitor C1. Similarly, when the first gate line G1 is turned off and the voltage level of G1 transitions from high to low, the level change of G1 will pull down the voltage level of the VCOM electrode through the coupling capacitor C.
It is known that there are many gate lines gate on the panel, and assuming that the gate line gate is on for 4H (1H is one frame time divided by the total number of rows), when the gate line Gn is off, the gate line Gn +4 is just on, and those two gate lines correspond to the same VCOM electrode, so that the coupling effect caused by the two gate lines can be mutually cancelled, i.e. there is no abnormal horizontal stripe.
However, when the gate lines Gn and Gn +4 correspond to different VCOM electrodes, the VCOM electrode corresponding to the gate line Gn closed is pulled low, and the VCOM electrode corresponding to the gate line Gn +4 is pulled high, and at this time, there is a brightness difference at the boundary of the TP sensor pads corresponding to the two VCOM electrodes, i.e. an abnormal TP striation phenomenon may occur.
Referring to fig. 2-3, the present invention provides a technical solution: a high refresh embedded touch panel comprises a TP sensor pad and a gate, wherein the TP sensor pad is hexagonal, the TP sensor pad is a VCOM electrode, and the gate is a TFT switch control line of each row of pixels in a touch display screen;
this patent adopts a neotype TP sensor pad shape design, can reduce the influence of gate line gate to common electrode VCOM's coupling effect to alleviate the phenomenon of unusual striae.
The specific design of the high refresh embedded touch panel is as follows: the original square shape of the TP sensor pad is changed into a hexagonal shape, one gate line gate can penetrate through a plurality of TP sensor pads at the boundary of the TP sensor pads, the same gate line gate has the same coupling effect on two adjacent TP sensor pads, and the boundary of the two adjacent TP sensor pads is penetrated by the gate lines gate, so the coupling effects caused by the gate line Gn and the gate line Gn +4 can be mutually offset, and the gate lines can further weaken the existence of TP cross striations by the mode.
The coupling effect of the gate line gate on the common electrode VCOM is reduced by changing the shape of the TP sensor pad, so that the brightness difference generated by the coupling effect is reduced at the boundary of the TP sensor pad, the phenomenon of abnormal horizontal stripes is reduced, and the display effect of the touch display screen is improved.
The high refresh embedded touch panel is composed of a plurality of TP sensor pads arranged transversely and longitudinally, and in the embodiment, a structure that five peripheral TP sensor pads are arranged outside the central TP sensor pad is adopted.
The device also comprises a coupling capacitor C1, wherein the coupling capacitor C1 is a parasitic capacitor between the gate line gate and the VCOM electrode, and the coupling capacitor is also called electric field coupling or electrostatic coupling and is a coupling mode generated by the existence of distributed capacitance.
Specifically, aiming at the phenomenon, the TP sensor pad is specially designed, and in fig. 2, the original square shape of the TP sensor pad is changed into a hexagonal shape. According to this design, at the boundary of the TP sensor pad, one gate line gate can pass through multiple TP sensor pads, and the coupling effect of the same gate line to two adjacent TP sensor pads is the same. And the boundaries of two adjacent TP sensor pads are crossed by a plurality of gate lines gate, the coupling effect caused by the gate lines Gn and Gn +4 can be mutually cancelled out as the above assumption analysis, so that the gate lines can further weaken the existence of TP stripes.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides an embedded touch panel of high refresh, includes TP sensor pad and grid gate, its characterized in that: the TP sensor pad is hexagonal, is a VCOM electrode, and is a TFT switch control line of each row of pixels in the touch display screen;
design of a high refresh embedded touch panel: the original square shape of the TP sensor pad is changed into a hexagonal shape, one gate line gate can pass through a plurality of TP sensor pads at the boundary of the TP sensor pads, the coupling effect of the same gate line gate to two adjacent TP sensor pads is the same, and the boundary of two adjacent TP sensor pads is penetrated by a plurality of gate lines.
2. The in-cell touch panel of claim 1, wherein: the high refresh embedded touch panel is composed of a plurality of TP sensor pads which are arranged transversely and longitudinally.
3. The in-cell touch panel of claim 1, wherein: also included is a coupling capacitance C1, which is the parasitic capacitance between the gate line gate and the VCOM electrode C1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111274062.8A CN113986053A (en) | 2021-10-29 | 2021-10-29 | High-refresh embedded touch panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111274062.8A CN113986053A (en) | 2021-10-29 | 2021-10-29 | High-refresh embedded touch panel |
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| Publication Number | Publication Date |
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| CN113986053A true CN113986053A (en) | 2022-01-28 |
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| CN202111274062.8A Pending CN113986053A (en) | 2021-10-29 | 2021-10-29 | High-refresh embedded touch panel |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104699318A (en) * | 2015-04-01 | 2015-06-10 | 上海天马微电子有限公司 | Array substrate, touch display panel and touch display device |
| CN104698698A (en) * | 2015-04-01 | 2015-06-10 | 上海天马微电子有限公司 | Array substrate and driving method thereof, touch display panel and display device |
| CN106249979A (en) * | 2016-08-31 | 2016-12-21 | 京东方科技集团股份有限公司 | Touch electrode structure and touch control display apparatus |
| CN108428705A (en) * | 2018-04-09 | 2018-08-21 | 京东方科技集团股份有限公司 | A kind of array substrate and preparation method thereof, display panel, display device |
| CN111103717A (en) * | 2020-01-10 | 2020-05-05 | 京东方科技集团股份有限公司 | Array substrate and display panel |
| CN112259055A (en) * | 2020-09-27 | 2021-01-22 | 南京中电熊猫液晶显示科技有限公司 | Touch display panel and method for improving poor horizontal stripes thereof |
| CN112835230A (en) * | 2019-11-22 | 2021-05-25 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof and display device |
-
2021
- 2021-10-29 CN CN202111274062.8A patent/CN113986053A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104699318A (en) * | 2015-04-01 | 2015-06-10 | 上海天马微电子有限公司 | Array substrate, touch display panel and touch display device |
| CN104698698A (en) * | 2015-04-01 | 2015-06-10 | 上海天马微电子有限公司 | Array substrate and driving method thereof, touch display panel and display device |
| CN106249979A (en) * | 2016-08-31 | 2016-12-21 | 京东方科技集团股份有限公司 | Touch electrode structure and touch control display apparatus |
| CN108428705A (en) * | 2018-04-09 | 2018-08-21 | 京东方科技集团股份有限公司 | A kind of array substrate and preparation method thereof, display panel, display device |
| US20200212071A1 (en) * | 2018-04-09 | 2020-07-02 | Ordos Yuansheng Optoelectronics Co., Ltd. | Array substrate and preparation method therefor, and display panel and display device |
| CN112835230A (en) * | 2019-11-22 | 2021-05-25 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof and display device |
| CN111103717A (en) * | 2020-01-10 | 2020-05-05 | 京东方科技集团股份有限公司 | Array substrate and display panel |
| CN112259055A (en) * | 2020-09-27 | 2021-01-22 | 南京中电熊猫液晶显示科技有限公司 | Touch display panel and method for improving poor horizontal stripes thereof |
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Application publication date: 20220128 |